Couple of MQTT Programs I wrote for a Project. Uses ESP8266 (Tested on NodeMCU) & uBlox NEO-6m GPS Module. This repo contains:
- Program to send GPS data over MQTT.
- Program to test your GPS module.
- JavaScript Program to retrive the GPS data from MQTT Broker.
To test locally you can use Mosquitto MQTT Broker (https://mosquitto.org/). Instructions for Linux:
sudo apt update
sudo apt install -y mosquitto mosquitto-clients
To make Mosquitto Service automatically start on Startup
sudo systemctl enable mosquitto.service
To check install version, status
sudo mosquitto -v
If it says "Error: Address already in use" then it's properly installed.
To check system's IP Address and use the XXX:XXX:XXX:XXX (IPv4) address.
hostname -I
To get Latitude:
mosquitto_sub -t GPS/Latitude
To get Longitude:
mosquitto_sub -t GPS/Longitude
